A wall enclosing a tiger that escaped and killed a teenager on Christmas was shorter than recommended, San Francisco Zoo officials say.

A dozen dolphins stranded on a Tasmanian beach were saved by volunteers who waded through cold ocean water to make the rescue.

A huge explosion that devastated a swath of Siberia a century ago was caused by an asteroid that was much smaller than had previously been believed, according to new research.

As tourism to Finland's Lapland region booms, reindeer farms reap the benefits.

California ground squirrels and rock squirrels chew on sloughed-off snake skin and smear it on their fur to avoid rattlesnakes, a new study says.

A newfound species of spitting cobra is believed to deliver more venom with a single bite than any other cobra on the planet.

"Hyper-auroras" on Jupiter, clues to Mars's watery past, and the destruction of a stellar icon were among the out-of-this world discoveries that ranked as the year's most popular.

Catching the snakes is the tricky part of making snake soup, says a Hong Kong shop owner who's been bitten by a king cobra.

A semiaquatic beast the size of a raccoon unearthed in northern India represents a vital "missing link" in the evolution of whales, according to new research.

A supermassive black hole at the center of a distant galaxy is blasting another galaxy with a violent energy jet. NASA images capture the display.

From spear-wielding chimps to an underwater "master of disguise," see National Geographic News's most viewed videos of the year.

A "black hole bully" is smashing a nearby neighbor with powerful x-rays and gamma rays—something that has never before been seen—scientists have announced.

A "strange owl," a bizarre shark, and giant squids were just some of National Geographic News's ten most viewed news photos of 2007.

National Geographic has not discovered ancient giant humans, despite rampant reports and pictures. But we have discovered how the hoax started—and perhaps why people believe.

See doctored images—and real photos used to create them—that sparked claims that National Geographic had found an ancient race of giants.